Docs: Updated compiler requirements

DEVELOPER

@@ -1,16 +1,15 @@
 How to Build Taskwarrior
 
   Satisfy the Requirements:
-    - gcc 4.4 or later, clang 2.9 or later or equivalent. This is because 2.4.1
-      marks the first step towards using modern C++11. Initially this involves
-      only feature N1984.
+    - gcc 4.7 or later, clang 3.3 or later or equivalent. This is because 2.4.4
+      will be utilizing C++11.
     - libuuid
     - gnutls (optional)
 
   Obtain and build code:
     $ git clone https://git.tasktools.org/scm/tm/task.git task.git
     $ cd task.git
-    $ git checkout 2.4.3                 # Latest dev branch
+    $ git checkout 2.4.4                 # Latest dev branch
     $ cmake -DCMAKE_BUILD_TYPE=debug .   # debug or release. Default: neither.
     $ make VERBOSE=1                     # Shows details
 
@@ -189,11 +188,11 @@ Work in Progress
 Current Codebase Condition
 
   'master' branch:
-    - 2.4.2 Current release, locked.
+    - 2.4.3 Current release, locked.
 
-  '2.4.3' branch:
+  '2.4.4' branch:
     - Current development branch no plans yet.
 
 ---
 
-2015-03-15 Updated for 2.4.3
+2015-04-21 Updated for 2.4.4

INSTALL

@@ -10,10 +10,10 @@ Pre-requisites
 You will need the CMake build system installed in order to build taskwarrior
 from source. More information on cmake can be obtained at http://cmake.org
 
-You will need a C++ compiler that supports C++11 N1984, which includes:
+You will need a C++ compiler that supports full C++11, which includes:
 
-  - gcc 4.4   (released 2009-04-21)
-  - clang 2.9 (released 2011-04-06)
+  - gcc 4.7   (released 2012-03-23)
+  - clang 3.3 (released 2013-01-07)
 
 In addition:
 

NEWS

@@ -1,14 +1,24 @@
 
 New Features in taskwarrior 2.4.4
 
+  - Taskwarrior now requires GCC 4.7+ / Clang 3.3+, for full C++11 support.
+
 New commands in taskwarrior 2.4.4
 
+  -
+
 New configuration options in taskwarrior 2.4.4
 
+  -
+
 Newly deprecated features in taskwarrior 2.4.4
 
+  -
+
 Removed features in 2.4.4
 
+  -
+
 Known Issues
 
   - https://bug.tasktools.org/